I'm noticing some people commenting have said they aren't fond of the slanted HP bars. I, for one, think they're very cool and stylish. Slanted bars like that are such a rarity in interfaces (probably because they take up more real estate and are hard to pull off on a lower resolution), but I like how you pulled it off. It looks like there could be some sort of neat information displayed in the extra space, though, because there is quite a bit of it (notably directly above the EXP bar where the HP curves), although it's not really a big deal or anything.
Ooh, really love the gradient you put up on the very left of the bars, the blue side that is!
Also the background is great-o! :L
The EXP bar might look better if it had it's own style also